It's a Winchester reproduction (Galazan) recoil pad. Just not the same as a real original recoil pad...
I thought the second one posted was the one with the Galazan pad. I'm talking about the one you posted to start the thread. It says "red rubber Winchester pad". I've now noticed someone above said that probably means its not the original pad.
So assuming it's not the original pad, how much does that lower the value of the gun? Is it worth $2400 which is apparently what he wants for it.